Steam-boiler.



No. 671,665. Patented Apr. 9, |901.

wQE. nlcKEY.

STEAM BOILER.

gApplication led Nov. 17, 1900. (No Model.) 2 Sheets-Sheet l.

@XR m wow ,ma Nonms 'PETERS oo.. pHoro-Lune.. wAsmNmn. o. c4

w. E.' mcKEY.

` No. s7|,65. Patented Apr. 9, `mol.

v i `sT`EAM`Bo|LER- Applicati led Nov. 17, 1

UNTTED STATES PATENT OFFICE.

WILLIAM E. DICKEY, OF4 NEW YORK, N. Y., ASSIGNOR OF ONE-THIRD TO ROSA DIOKEY, OF SAME PLACE.

STEAM-scusa.

SPECIFICATION forming part Of Letters Patent N0. 671,665, dated .April 9, 1901. Application led November `17, 1900. Serial No. 36,818. (No model.)

T @ZZ wwm t 777/012/ OOWIOWW having an'outwardly-extending ange at its Beit known that I, WILLIAM E. DICKEY, a bottom'and an inwardly-extending iiange at citizen of the United States, residing at New its top, while the detachable exterior sur- York,borough of Manhattan,county and State rounding shell A is provided with internally- 5 5 5 of New York, have made a new anduseful Inextending flanges at both ends adapted to fit vention in Steam-Boilers, of which the followclosely against the before-mentioned flanges ing is a specification. at the opposite ends of the shell B, said shells My invention is directed particularly to imbeing secured together by a series of bolts b b b. provementsin steam-boilers of the water-tube t t t are the water-tubes, secured in any pre- 6o 1o type; and ithas for its objects, first, to so conferred manner at their open ends in drilled struct such a boiler that the tubes may be holes extending through the interior shell B, readily cleaned or repaired; second, to so artheir closed ends being grouped together in range the tubes within the body of the boiler the manner shown in Fig. 2, so that the tubes above the combustion-chamber that the best of greatest length form a central vertical pas- 15 possible heating effects are had from the prodsage at the axial center of the boiler, as shown, ucts of combustion as they ascend therewhile the inner ends of the tubes of shorter through, and, third, to provideanovel form of length are located between the before-menburner and to so combine the same with a tutioned tubes. These tubes are preferably lobular boiler of the type named that the best cated diagonally in banks of four with-rela- 7o zo heating effects are had. tion to each other, as clearly illustrated. in

For a full and clear understanding of the Fig. 3 of the drawings, for the purpose of causinvention, such as will enable others skilled ing the products of combustion as they asin the art to construct and use the same, refcend to give the best heating eects. erence is had to the accompanying drawings, C represents a light metal cover for the 25 in whichboiler, from one side of which the uptake N Figure l is a longitudinal sectional view conveys the products of combustion to any taken through the body of a steam-boiler emdesired point, and E is a combustion-chambodying my improvements, the water-tubes ber at Ythe lower end of the boiler, provided of the boiler and a part of the heating apwith draft-openings H and a damper D, se- 8o 3o paratus therefor being shown in elevational cured at its center bya pivotpin O, and hav- View. Fig. 2 is a transverse sectional view ing an operating-handle h. The cover Gand taken through Fig. l just below the upper combustion chamber are attached to the head of the boiler and as seen looking from boiler by the same bolts b h which secure the the top toward the bottom of the drawing, the two shells A and B together. 3 5 heating apparatus being removed in this View P represents a combined gas-generating of the drawing and the dampenopenings at and heating apparatus, consisting of a pipe the bottom of the combustion-chamber being adapted to convey fuel, preferably petroleum, shown in dotted lines Fig. 3 is a detail secnaphtha, or equivalent vaporizabl'e liquids, tional view of a number of the water-tubes in to a series of burners G G, preferably four or 9o 4c the interior of the boiler, illustrating the pre-y more, radially located, said pipe P extending ferred manner of grouping them so as to infirst vertically upward to the upperend of the sure the best heating eects from the ascendboiler and through the central vertical pasing products of combustion. sage between the closed inner ends of the My improved boiler is designed especially tubest tand spirally wound thence downward 1,5 for use in connection with automobiles or light around this upward extension to the lower end Vehicles or in places where it is often required of the boiler, finally arranged, as shown, in to generate steam in a short space of time and large coils of receding diameter beneath the also where economy of space and weight is a greater portion of the lengths of the tubes t, matter of importance. To this end I conthe burners G being attached to the inner roo 5o struct the body of the boiler proper of two coil, as shown, and the entire structure supmetallic shells A and B, the interior shell B ported upon brackets, three or more, consisting of arms J, with their lower ends secured to the inner surface of the combustion-chamber and their upper ends to detachable crossarms L L by screws m m, which parts grip or hold the several coils and the attached burners, as shown, all constituting when thus arranged the heating apparatus for the boiler.

G represents a primary burner located directly below the upward extension of the pipe P, its function being to generate the gases in said upward extension after the manner of ordinary vapor-burners. The several burners G G are of novel construction and consist of two parts 7a and f, the part k being secured directly to the pipe P in any preferred manner and having at its lower end e a beveled female part adapted to receive ar correspondingly-beveled male part at one side of the detachable part f, said detachable part having a downwardly-extending neck screwthreaded interiorly for receiving the lower screwfthreaded end of a flame regulating valve t', the arrangement being such that the amount of gas escaping is regulated by a wrench upon turning the valve t' in either direction at will.

y represents a steel yoke adapted to t in a groove at one side of the detachable part f and entirely around the two parts of the burner, s being a set-screw extending through the yoke ly, with its pointed end bearing in an opening in the outer face 'of the part la, the arrangenient being such that when the set-screw is withdrawn the burner may be taken apart and -cleaned or repaired at Will, and when turned to the position shown in the drawings it securely locks the two parts of the burner together.

The operation of the improvement is obvious, it being apparent that after the st-artin ggas is generated in the burner by heating the pipe P, through the agency of the primary burner G', in the usual manner of starting vapor-burners, the gas is turned on byregulating the valves z' and then igniting the same. Owing to the peculiar arrangement of the tubes t the ascending products of combustion will be forced to pass completely around all parts of the inwardly-projecting tubes t t and generate steam therein, such of the tubes as are located above the water-level w acting in the nature of superheaters for the purpose of generating dry steam for actual use. When it is desired to clean the boiler or repair any of the tubes, the bolts b are all withdrawn and the cover C, combustion-chamber E, and exterior shell A detached, thus making it possible to clean the tubes by the insertion of Wellknown devices for cleaning tubular boilers.

I do not limit my invention to the particular details of construction herein shown and described. I believe it is broadly new with me to devise a water-tube boilerin which the tubes of different lengths are radially arranged with their closed ends extending toward the axis of the boiler and to surround the same with a detachable shell, the inner ends of the tubes being so grouped as to give comparatively large heating eect. I believe it is also broadly new with me to combine with a water-tube steam-boiler a heating apparatus so arranged that the gas-generating portion thereof extends through the body of the boiler, while the steam-generating portion thereof is located beneath the water-tubes in such manner that the products of combustion pass upward and around all of the tubes before passing to the uptake.

Havingthus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is'- l. A water-tube boiler having an interior and an exterior shell and a series of watertubes of different lengths radially arranged within the interior shell, substantially as described.

2. A water-tube boiler having an interior and an exterior shell provided with flanges at their opposite ends and detachably secured together by bolts in combination with a series of tubes of different lengths radially arranged within the interior shell, substantially as described. v

3L A water-tube steam-boiler having an interior and an exterior shell detachably. secured together by flanges and bolts at the opposite ends thereof; in combination with water-tubes of different lengths having their open ends secured in openings extending through the interior shell, substantially as described.

4. A Water-tube steam-boiler having an interior and an exterior shell detachably secured together; in combination with watertubes of different lengths having their open ends secured in openings extending through the interior shell and their closed ends grouped together so that the products of cornbustion circulate around all of the tubes, substantially as described.

5. A water-tube steam-boiler embracing two flanged shells, a cover and a combustionchamber all detachably secured together by bolts extending through the flanges; in combination with .radially-disposed Water-tubes extending through the interior shell, substantially as described.

6. A water-tube steam -boiler embracing two fianged shells, one of which sur-rounds the other; a cover and a combustion-chamber all held together by bolts extending through the flanges; in combination with water-tubes radially arranged inside the interior shell and having connection with the charnber between the shells, their closed ends being so arranged as to constitute a central vertical passage, substantially as described.

7. A water-tube steam-boiler having an interior and an exterior shell, the interior shell having an inwardly-projecting flange at its u pper end and an outwardly-projecting flange at its lower end, the outer'shell being provided with inwardlyprojecting flanges at the opposite ends,adapted to fit against the upper faces IOO IIO

of the flanges of the rst-named shell; in combination with bolts for securing the saine toget-her, and horizontally-disposed tubes located within the inner shell, so arranged that the water circulates in the tubes and the chamber between the two shells, substantially as described.

8. A water-tube steam-boiler having a series of water-tubes radially arranged with a central vertical passage between the inner ends; in combination with a combined gasgenerating and heating apparatus, one portion of which extends upward through the central vertical passage, the other part thereof being located beneath the entire series of tubes, substantially as described. 

